@misc{indiciae545a778750de,
  title = {Alpha-fetoprotein in abortion.},
  author = {M Seppälä and E Ruoslahti},
  year = {1972},
  doi = {10.1136/bmj.4.5843.769},
  url = {https://pubmed.ncbi.nlm.nih.gov/4646508/},
  note = {Source identifier: 4646508}
}